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Amanur Rahman
Amanur Rahman

Posted on • Originally published at amanurrahman.com

Speed Up WordPress: 15 Proven Optimization Techniques

A slow WordPress site doesn't just frustrate visitors — it directly hurts your Google rankings, since Core Web Vitals are now a confirmed ranking factor. Even a 1-second delay in load time can cut conversions by 7% or more.

Quick Overview

  • Hosting quality — no amount of caching fixes a slow server response time caused by overcrowded shared hosting
  • Caching — page, browser, and object caching so WordPress isn't rebuilding pages from the database every visit
  • Image optimization — usually the single biggest speed win: WebP format, correct sizing, compression before upload
  • Lazy loading, CDN, minification — the standard trio for cutting load time further
  • Database cleanup — post revisions, spam comments, and expired transients quietly slow every query
  • Core Web Vitals specifically — LCP, INP, and CLS, tested in PageSpeed Insights, not guessed at
  • WooCommerce-specific tips — product page limits, fragment caching pitfalls

Full list of all 15 techniques plus a quick-reference checklist: Speed Up WordPress: 15 Proven Optimization Techniques

What's been your biggest speed win on a WordPress project?

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